Commit Graph

112109 Commits

Author SHA1 Message Date
Richard Henderson
d0ae87a27c target/hppa: Fix DCOR reconstruction of carry bits
The carry bits for each nibble N are located in bit (N+1)*4,
so the shift by 3 was off by one.  Furthermore, the carry bit
for the most significant carry bit is indeed located in bit 64,
which is located in a different storage word.

Use a double-word shift-right to reassemble into a single word
and place them all at bit 0 of their respective nibbles.

Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Helge Deller <deller@gmx.de>
Fixes: b2167459ae ("target-hppa: Implement basic arithmetic")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-27 12:15:25 -10:00
Sven Schnelle
7d50b69660 target/hppa: Use gva_offset_mask() everywhere
Move it to cpu.h, so it can also be used in hppa_form_gva_psw().

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240324080945.991100-2-svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-27 12:15:25 -10:00
Richard Henderson
6ebebea758 target/hppa: Fix EIRR, EIEM versus icount
Call translator_io_start before write to EIRR.
Move evaluation of EIRR vs EIEM to hppa_cpu_exec_interrupt.
Exit TB after write to EIEM, but otherwise use a straight store.

Reviewed-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-27 12:15:25 -10:00
Richard Henderson
0c58c1bc1c target/hppa: Tidy read of interval timer
The call to gen_helper_read_interval_timer is
identical on both sides of the IF.

Reviewed-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-27 12:15:25 -10:00
Richard Henderson
104281c10e target/hppa: Mark interval timer write as io
Reviewed-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-27 12:15:25 -10:00
Sven Schnelle
bd1ad92ccf target/hppa: Fix ADD/SUB trap on overflow for narrow mode
Fixes: c53e401ed9 ("target/hppa: Remove TARGET_REGISTER_BITS")
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240321184228.611897-2-svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-27 12:15:25 -10:00
Sven Schnelle
578b8132b2 target/hppa: Handle unit conditions for wide mode
Wide mode provides two more conditions, add them.

Fixes: 59963d8fdf ("target/hppa: Pass d to do_unit_cond")
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240321184228.611897-1-svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-27 12:15:25 -10:00
Richard Henderson
2f48ba7b94 target/hppa: Fix B,GATE for wide mode
Do not clobber the high bits of the address by using a 32-bit deposit.

Reviewed-by: Helge Deller <deller@gmx.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-27 12:15:25 -10:00
Richard Henderson
7fb7c9da34 target/hppa: Fix BE,L set of sr0
The return address comes from IA*Q_Next, and IASQ_Next
is always equal to IASQ_Back, not IASQ_Front.

Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-03-27 12:15:25 -10:00
Peter Maydell
5012e522ac Update version for v9.0.0-rc1 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-26 19:46:55 +00:00
Peter Maydell
38a23eb35c Misc HW patch queue
[hw]
 - Do not silently overwrite 'io_timeout' property in scsi-generic (Lorenz)
 - Propagate period when enabling a clock in stm32l4x5 mux (Arnaud, Phil)
 - Add missing smbios_get_table_legacy() stub (Igor)
 - Append a space in gpa2hva() HMP error message (Yao)
 - Fix compiler warning in 'execlog' plugin (Yao)
 
 [target]
 - i386: Enable page walking from MMIO memory (Gregory, Jonathan)
 - tricore: Use correct string format in cpu_tlb_fill (Phil)
 
 [docs]
 - Fix formatting in amigang.rst (Zoltan)
 
 [ui]
 - Fix cocoa regression in platform fullscreen toggling (Akihiko)
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Merge tag 'hw-misc-20240326' of https://github.com/philmd/qemu into staging

Misc HW patch queue

[hw]
- Do not silently overwrite 'io_timeout' property in scsi-generic (Lorenz)
- Propagate period when enabling a clock in stm32l4x5 mux (Arnaud, Phil)
- Add missing smbios_get_table_legacy() stub (Igor)
- Append a space in gpa2hva() HMP error message (Yao)
- Fix compiler warning in 'execlog' plugin (Yao)

[target]
- i386: Enable page walking from MMIO memory (Gregory, Jonathan)
- tricore: Use correct string format in cpu_tlb_fill (Phil)

[docs]
- Fix formatting in amigang.rst (Zoltan)

[ui]
- Fix cocoa regression in platform fullscreen toggling (Akihiko)

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# gpg: Signature made Tue 26 Mar 2024 15:43:06 GMT
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
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* tag 'hw-misc-20240326' of https://github.com/philmd/qemu:
  ui/cocoa: Use NSTrackingInVisibleRect
  ui/cocoa: Resize window after toggling zoom-to-fit
  ui/cocoa: Fix aspect ratio
  hw/smbios: add stub for smbios_get_table_legacy()
  contrib/plugins/execlog: Fix compiler warning
  docs/system/ppc/amigang.rst: Fix formatting
  hw/misc/stm32l4x5_rcc: Propagate period when enabling a clock
  hw/misc/stm32l4x5_rcc: Inline clock_update() in clock_mux_update()
  hw/clock: Let clock_set_mul_div() return a boolean value
  target/tricore/helper: Use correct string format in cpu_tlb_fill()
  monitor/hmp-cmds-target: Append a space in error message in gpa2hva()
  hw/scsi/scsi-generic: Fix io_timeout property not applying
  target/i386/tcg: Enable page walking from MMIO memory

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-26 15:50:29 +00:00
Peter Maydell
5107022a61 Block layer patches
- Fix crash with unaligned prefetch requests (e.g. in stream jobs)
 - vdpa-dev: Fix initialisation order to restore VDUSE compatibility
 - iotests fixes
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Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- Fix crash with unaligned prefetch requests (e.g. in stream jobs)
- vdpa-dev: Fix initialisation order to restore VDUSE compatibility
- iotests fixes

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* tag 'for-upstream' of https://repo.or.cz/qemu/kevin:
  iotests: add test for stream job with an unaligned prefetch read
  block-backend: fix edge case in bdrv_next_cleanup() where BDS associated to BB changes
  block-backend: fix edge case in bdrv_next() where BDS associated to BB changes
  block/io: accept NULL qiov in bdrv_pad_request
  vdpa-dev: Fix initialisation order to restore VDUSE compatibility
  tests/qemu-iotests: Test 157 and 227 require virtio-blk

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-26 15:50:19 +00:00
Akihiko Odaki
ccebb9ae35 ui/cocoa: Use NSTrackingInVisibleRect
I observed [NSTrackingArea rect] becomes de-synchronized with the view
frame with some unknown condition, and fails to track mouse movement on
some area of the view. Specify NSTrackingInVisibleRect option to let
Cocoa automatically update NSTrackingArea, which also saves code for
synchronization.

Fixes: 91aa508d02 ("ui/cocoa: Let the platform toggle fullscreen")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20240323-fixes-v2-3-18651a2b0394@daynix.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26 14:32:54 +01:00
Akihiko Odaki
f69a6f0413 ui/cocoa: Resize window after toggling zoom-to-fit
Resize the window so that the content will fit without zooming.

Fixes: 91aa508d02 ("ui/cocoa: Let the platform toggle fullscreen")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20240323-fixes-v2-2-18651a2b0394@daynix.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26 14:32:54 +01:00
Akihiko Odaki
d2ee0420a3 ui/cocoa: Fix aspect ratio
[NSWindow setContentAspectRatio:] does not trigger window resize itself,
so the wrong aspect ratio will persist if nothing resizes the window.
Call [NSWindow setContentSize:] in such a case.

Fixes: 91aa508d02 ("ui/cocoa: Let the platform toggle fullscreen")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20240323-fixes-v2-1-18651a2b0394@daynix.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26 14:32:54 +01:00
Igor Mammedov
5c5d00df67 hw/smbios: add stub for smbios_get_table_legacy()
QEMU build fails with

  hw/i386/fw_cfg.c:74: undefined reference to `smbios_get_table_legacy'

when it's built with only 'microvm' enabled i.e. with config patch

   +++ b/configs/devices/i386-softmmu/default.mak
   @@ -26,7 +26,7 @@

   # Boards:
   #
   -CONFIG_ISAPC=y
   -CONFIG_I440FX=y
   -CONFIG_Q35=y
   +CONFIG_ISAPC=n
   +CONFIG_I440FX=n
   +CONFIG_Q35=n

It happens because I've fogotten/lost smbios_get_table_legacy() stub.

Fix it by adding missing stub as Philippe suggested.

Fixes: b42b0e4daa "smbios: build legacy mode code only for 'pc' machine"
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-ID: <20240326122630.85989-1-imammedo@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26 14:32:54 +01:00
Yao Xingtao
d5866a7a4e contrib/plugins/execlog: Fix compiler warning
1. The g_pattern_match_string() is deprecated when glib2 version >= 2.70.
   Use g_pattern_spec_match_string() instead to avoid this problem.

2. The type of second parameter in g_ptr_array_add() is
   'gpointer' {aka 'void *'}, but the type of reg->name is 'const char*'.
   Cast the type of reg->name to 'gpointer' to avoid this problem.

compiler warning message:

  contrib/plugins/execlog.c:330:17: warning: ‘g_pattern_match_string’
  is deprecated: Use 'g_pattern_spec_match_string' instead [-Wdeprecated-declarations]
    330 |                 if (g_pattern_match_string(pat, rd->name) ||
        |                 ^~
  In file included from /usr/include/glib-2.0/glib.h:67,
                   from contrib/plugins/execlog.c:9:
  /usr/include/glib-2.0/glib/gpattern.h:57:15: note: declared here
     57 | gboolean      g_pattern_match_string   (GPatternSpec *pspec,
        |               ^~~~~~~~~~~~~~~~~~~~~~
  contrib/plugins/execlog.c:331:21: warning: ‘g_pattern_match_string’
  is deprecated: Use 'g_pattern_spec_match_string' instead [-Wdeprecated-declarations]
    331 |                     g_pattern_match_string(pat, rd_lower)) {
        |                     ^~~~~~~~~~~~~~~~~~~~~~
  /usr/include/glib-2.0/glib/gpattern.h:57:15: note: declared here
     57 | gboolean      g_pattern_match_string   (GPatternSpec *pspec,
        |               ^~~~~~~~~~~~~~~~~~~~~~
  contrib/plugins/execlog.c:339:63: warning: passing argument 2 of
  ‘g_ptr_array_add’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
    339 |                             g_ptr_array_add(all_reg_names, reg->name);
        |                                                            ~~~^~~~~~
  In file included from /usr/include/glib-2.0/glib.h:33:
  /usr/include/glib-2.0/glib/garray.h:198:62: note: expected
  ‘gpointer’ {aka ‘void *’} but argument is of type ‘const char *’
    198 |                                            gpointer          data);
        |                                            ~~~~~~~~~~~~~~~~~~^~~~

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2210
Signed-off-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Message-ID: <20240326015257.21516-1-yaoxt.fnst@fujitsu.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26 14:32:51 +01:00
BALATON Zoltan
1dd7754aca docs/system/ppc/amigang.rst: Fix formatting
Add missing space to fix character formatting where it was missed in
two places.

Fixes: 623d9065b6 (docs/system/ppc: Document running Linux on AmigaNG machines)
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20240324161148.4650D4E601F@zero.eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26 14:24:06 +01:00
Arnaud Minier
32da7e207c hw/misc/stm32l4x5_rcc: Propagate period when enabling a clock
The "clock_set_mul_div" function doesn't propagate the clock period
to the children if it is changed (e.g. by enabling/disabling a clock
multiplexer).
This was overlooked during the implementation due to late changes.

This commit propagates the change if the multiplier or divider changes.

Fixes: ec7d83acbd ("hw/misc/stm32l4x5_rcc: Add an internal clock multiplexer object")
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Message-ID: <20240317103918.44375-2-arnaud.minier@telecom-paris.fr>
[PMD: Check clock_set_mul_div() return value]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20240325152827.73817-4-philmd@linaro.org>
2024-03-26 14:24:06 +01:00
Philippe Mathieu-Daudé
1f439706a0 hw/misc/stm32l4x5_rcc: Inline clock_update() in clock_mux_update()
Trivial inlining in preliminary patch to make the next
one easier to review.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20240325152827.73817-3-philmd@linaro.org>
2024-03-26 14:24:06 +01:00
Philippe Mathieu-Daudé
52405b7f69 hw/clock: Let clock_set_mul_div() return a boolean value
Let clock_set_mul_div() return a boolean value whether the
clock has been updated or not, similarly to clock_set().

Return early when clock_set_mul_div() is called with
same mul/div values the clock has.

Acked-by: Luc Michel <luc@lmichel.fr>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20240325152827.73817-2-philmd@linaro.org>
2024-03-26 14:24:06 +01:00
Philippe Mathieu-Daudé
e66d741467 target/tricore/helper: Use correct string format in cpu_tlb_fill()
'address' got converted from target_ulong to vaddr in commit
68d6eee73c ("target/tricore: Convert to CPUClass::tlb_fill").
Use the corresponding format string to avoid casting.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240319051413.6956-1-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
2024-03-26 14:24:06 +01:00
Yao Xingtao
a158c63b3b monitor/hmp-cmds-target: Append a space in error message in gpa2hva()
In qemu monitor mode, when we use gpa2hva command to print the host
virtual address corresponding to a guest physical address, if the gpa is
not in RAM, the error message is below:

  (qemu) gpa2hva 0x750000000
  Memory at address 0x750000000is not RAM

A space is missed between '0x750000000' and 'is'.

Signed-off-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Fixes: e9628441df ("hmp: gpa2hva and gpa2hpa hostaddr command")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dave@treblig.org>
Message-ID: <20240319021610.2423844-1-ruansy.fnst@fujitsu.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26 14:24:06 +01:00
Lorenz Brun
7c7a9f578e hw/scsi/scsi-generic: Fix io_timeout property not applying
The io_timeout property, introduced in c9b6609 (part of 6.0) is
silently overwritten by the hardcoded default value of 30 seconds
(DEFAULT_IO_TIMEOUT) in scsi_generic_realize because that function is
being called after the properties have already been applied.

The property definition already has a default value which is applied
correctly when no value is explicitly set, so we can just remove the
code which overrides the io_timeout completely.

This has been tested by stracing SG_IO operations with the io_timeout
property set and unset and now sets the timeout field in the ioctl
request to the proper value.

Fixes: c9b6609b69 ("scsi: make io_timeout configurable")
Signed-off-by: Lorenz Brun <lorenz@brun.one>
Message-ID: <20240315145831.2531695-1-lorenz@brun.one>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26 14:24:06 +01:00
Gregory Price
9dab7bbb01 target/i386/tcg: Enable page walking from MMIO memory
CXL emulation of interleave requires read and write hooks due to
requirement for subpage granularity. The Linux kernel stack now enables
using this memory as conventional memory in a separate NUMA node. If a
process is deliberately forced to run from that node
$ numactl --membind=1 ls
the page table walk on i386 fails.

Useful part of backtrace:

    (cpu=cpu@entry=0x555556fd9000, fmt=fmt@entry=0x555555fe3378 "cpu_io_recompile: could not find TB for pc=%p")
    at ../../cpu-target.c:359
    (retaddr=0, addr=19595792376, attrs=..., xlat=<optimized out>, cpu=0x555556fd9000, out_offset=<synthetic pointer>)
    at ../../accel/tcg/cputlb.c:1339
    (cpu=0x555556fd9000, full=0x7fffee0d96e0, ret_be=ret_be@entry=0, addr=19595792376, size=size@entry=8, mmu_idx=4, type=MMU_DATA_LOAD, ra=0) at ../../accel/tcg/cputlb.c:2030
    (cpu=cpu@entry=0x555556fd9000, p=p@entry=0x7ffff56fddc0, mmu_idx=<optimized out>, type=type@entry=MMU_DATA_LOAD, memop=<optimized out>, ra=ra@entry=0) at ../../accel/tcg/cputlb.c:2356
    (cpu=cpu@entry=0x555556fd9000, addr=addr@entry=19595792376, oi=oi@entry=52, ra=ra@entry=0, access_type=access_type@entry=MMU_DATA_LOAD) at ../../accel/tcg/cputlb.c:2439
    at ../../accel/tcg/ldst_common.c.inc:301
    at ../../target/i386/tcg/sysemu/excp_helper.c:173
    (err=0x7ffff56fdf80, out=0x7ffff56fdf70, mmu_idx=0, access_type=MMU_INST_FETCH, addr=18446744072116178925, env=0x555556fdb7c0)
    at ../../target/i386/tcg/sysemu/excp_helper.c:578
    (cs=0x555556fd9000, addr=18446744072116178925, size=<optimized out>, access_type=MMU_INST_FETCH, mmu_idx=0, probe=<optimized out>, retaddr=0) at ../../target/i386/tcg/sysemu/excp_helper.c:604

Avoid this by plumbing the address all the way down from
x86_cpu_tlb_fill() where is available as retaddr to the actual accessors
which provide it to probe_access_full() which already handles MMIO accesses.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2180
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2220
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Gregory Price <gregory.price@memverge.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-ID: <20240307155304.31241-2-Jonathan.Cameron@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-03-26 14:23:50 +01:00
Fiona Ebner
12d7b3bbd3 iotests: add test for stream job with an unaligned prefetch read
Previously, bdrv_pad_request() could not deal with a NULL qiov when
a read needed to be aligned. During prefetch, a stream job will pass a
NULL qiov. Add a test case to cover this scenario.

By accident, also covers a previous race during shutdown, where block
graph changes during iteration in bdrv_flush_all() could lead to
unreferencing the wrong block driver state and an assertion failure
later.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20240322095009.346989-5-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-03-26 14:21:26 +01:00
Fiona Ebner
bac09b093e block-backend: fix edge case in bdrv_next_cleanup() where BDS associated to BB changes
Same rationale as for commit "block-backend: fix edge case in
bdrv_next() where BDS associated to BB changes". The block graph might
change between the bdrv_next() call and the bdrv_next_cleanup() call,
so it could be that the associated BDS is not the same that was
referenced previously anymore. Instead, rely on bdrv_next() to set
it->bs to the BDS it referenced and unreference that one in any case.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20240322095009.346989-4-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-03-26 14:21:26 +01:00
Fiona Ebner
f6d38c9f6d block-backend: fix edge case in bdrv_next() where BDS associated to BB changes
The old_bs variable in bdrv_next() is currently determined by looking
at the old block backend. However, if the block graph changes before
the next bdrv_next() call, it might be that the associated BDS is not
the same that was referenced previously. In that case, the wrong BDS
is unreferenced, leading to an assertion failure later:

> bdrv_unref: Assertion `bs->refcnt > 0' failed.

In particular, this can happen in the context of bdrv_flush_all(),
when polling for bdrv_co_flush() in the generated co-wrapper leads to
a graph change (for example with a stream block job [0]).

A racy reproducer:

> #!/bin/bash
> rm -f /tmp/backing.qcow2
> rm -f /tmp/top.qcow2
> ./qemu-img create /tmp/backing.qcow2 -f qcow2 64M
> ./qemu-io -c "write -P42 0x0 0x1" /tmp/backing.qcow2
> ./qemu-img create /tmp/top.qcow2 -f qcow2 64M -b /tmp/backing.qcow2 -F qcow2
> ./qemu-system-x86_64 --qmp stdio \
> --blockdev qcow2,node-name=node0,file.driver=file,file.filename=/tmp/top.qcow2 \
> <<EOF
> {"execute": "qmp_capabilities"}
> {"execute": "block-stream", "arguments": { "job-id": "stream0", "device": "node0" } }
> {"execute": "quit"}
> EOF

[0]:

> #0  bdrv_replace_child_tran (child=..., new_bs=..., tran=...)
> #1  bdrv_replace_node_noperm (from=..., to=..., auto_skip=..., tran=..., errp=...)
> #2  bdrv_replace_node_common (from=..., to=..., auto_skip=..., detach_subchain=..., errp=...)
> #3  bdrv_drop_filter (bs=..., errp=...)
> #4  bdrv_cor_filter_drop (cor_filter_bs=...)
> #5  stream_prepare (job=...)
> #6  job_prepare_locked (job=...)
> #7  job_txn_apply_locked (fn=..., job=...)
> #8  job_do_finalize_locked (job=...)
> #9  job_exit (opaque=...)
> #10 aio_bh_poll (ctx=...)
> #11 aio_poll (ctx=..., blocking=...)
> #12 bdrv_poll_co (s=...)
> #13 bdrv_flush (bs=...)
> #14 bdrv_flush_all ()
> #15 do_vm_stop (state=..., send_stop=...)
> #16 vm_shutdown ()

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20240322095009.346989-3-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-03-26 14:21:26 +01:00
Stefan Reiter
3f934817c8 block/io: accept NULL qiov in bdrv_pad_request
Some operations, e.g. block-stream, perform reads while discarding the
results (only copy-on-read matters). In this case, they will pass NULL
as the target QEMUIOVector, which will however trip bdrv_pad_request,
since it wants to extend its passed vector. In particular, this is the
case for the blk_co_preadv() call in stream_populate().

If there is no qiov, no operation can be done with it, but the bytes
and offset still need to be updated, so the subsequent aligned read
will actually be aligned and not run into an assertion failure.

In particular, this can happen when the request alignment of the top
node is larger than the allocated part of the bottom node, in which
case padding becomes necessary. For example:

> ./qemu-img create /tmp/backing.qcow2 -f qcow2 64M -o cluster_size=32768
> ./qemu-io -c "write -P42 0x0 0x1" /tmp/backing.qcow2
> ./qemu-img create /tmp/top.qcow2 -f qcow2 64M -b /tmp/backing.qcow2 -F qcow2
> ./qemu-system-x86_64 --qmp stdio \
> --blockdev qcow2,node-name=node0,file.driver=file,file.filename=/tmp/top.qcow2 \
> <<EOF
> {"execute": "qmp_capabilities"}
> {"execute": "blockdev-add", "arguments": { "driver": "compress", "file": "node0", "node-name": "node1" } }
> {"execute": "block-stream", "arguments": { "job-id": "stream0", "device": "node1" } }
> EOF

Originally-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
[FE: do update bytes and offset in any case
     add reproducer to commit message]
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20240322095009.346989-2-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-03-26 14:21:26 +01:00
Kevin Wolf
2c66de61f8 vdpa-dev: Fix initialisation order to restore VDUSE compatibility
VDUSE requires that virtqueues are first enabled before the DRIVER_OK
status flag is set; with the current API of the kernel module, it is
impossible to enable the opposite order in our block export code because
userspace is not notified when a virtqueue is enabled.

This requirement also mathces the normal initialisation order as done by
the generic vhost code in QEMU. However, commit 6c482547 accidentally
changed the order for vdpa-dev and broke access to VDUSE devices with
this.

This changes vdpa-dev to use the normal order again and use the standard
vhost callback .vhost_set_vring_enable for this. VDUSE devices can be
used with vdpa-dev again after this fix.

vhost_net intentionally avoided enabling the vrings for vdpa and does
this manually later while it does enable them for other vhost backends.
Reflect this in the vhost_net code and return early for vdpa, so that
the behaviour doesn't change for this device.

Cc: qemu-stable@nongnu.org
Fixes: 6c4825476a ('vdpa: move vhost_vdpa_set_vring_ready to the caller')
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20240315155949.86066-1-kwolf@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-03-26 14:21:26 +01:00
Thomas Huth
d9e4070603 tests/qemu-iotests: Test 157 and 227 require virtio-blk
Tests 157 and 227 use the virtio-blk device, so we have to mark these
tests accordingly to be skipped if this devices is not available (e.g.
when running the tests with qemu-system-avr only).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240325154737.1305063-1-thuth@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-03-26 14:21:26 +01:00
Peter Maydell
096ae430a7 QAPI patches patches for 2024-03-26
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Merge tag 'pull-qapi-2024-03-26' of https://repo.or.cz/qemu/armbru into staging

QAPI patches patches for 2024-03-26

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# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
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* tag 'pull-qapi-2024-03-26' of https://repo.or.cz/qemu/armbru:
  qapi: document parameters of query-cpu-model-* QAPI commands
  qapi/block-core: improve Qcow2OverlapCheckFlags documentation
  qapi: document leftover members in qapi/stats.json
  qapi: document leftover members in qapi/run-state.json
  qapi: document InputMultiTouchType
  qga/qapi-schema: Refill doc comments to conform to current conventions
  qapi: Correct documentation indentation and whitespace
  qapi: Refill doc comments to conform to current conventions
  qapi: Don't repeat member type in its documentation text
  qapi: Start sentences with a capital letter, end them with a period
  qapi: Fix abbreviation punctuation in doc comments
  qapi: Fix typo in request-ebpf documentation
  qapi: Fix argument markup in drive-mirror documentation
  qapi: Tidy up indentation of add_client's example
  qapi: Tidy up block-latency-histogram-set documentation some more
  qapi: Expand a few awkward abbreviations in documentation
  qapi: Drop stray Arguments: line from qmp_capabilities docs
  qapi: Fix bogus documentation of query-migrationthreads
  qapi: Resync MigrationParameter and MigrateSetParameters
  qapi: Improve migration TLS documentation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-26 09:50:21 +00:00
David Hildenbrand
1a533ce986 qapi: document parameters of query-cpu-model-* QAPI commands
Let's document the parameters of these commands, so we can remove them
from the "documentation-exceptions" list.

While at it, extend the "Returns:" documentation as well, fixing a wrong
use of CpuModelBaselineInfo vs. CpuModelCompareInfo for
query-cpu-model-comparison.

Cc: Markus Armbruster <armbru@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Eduardo Habkost <eduardo@habkost.net>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Cc: "Philippe Mathieu-Daudé" <philmd@linaro.org>
Cc: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-ID: <20240325150141.342720-1-david@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Punctuation tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Vladimir Sementsov-Ogievskiy
125f973cc2 qapi/block-core: improve Qcow2OverlapCheckFlags documentation
Most of fields have no description at all. Let's fix that. Still, no
reason to place here more detailed descriptions of what these
structures are, as we have public Qcow2 format specification.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20240325120054.2693236-1-vsementsov@yandex-team.ru>
Acked-by: Markus Armbruster <armbru@redhat.com>
[Capitalize "QEMU", update qapi/pragma.json]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Paolo Bonzini
1de759534d qapi: document leftover members in qapi/stats.json
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240325104504.1358734-1-pbonzini@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Update qapi/pragma.json]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Paolo Bonzini
b2913cc2a1 qapi: document leftover members in qapi/run-state.json
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240325104502.1358693-1-pbonzini@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Capitalize "ID", update qapi/pragma.json]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Marc-André Lureau
6087783ea7 qapi: document InputMultiTouchType
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20240325095648.2835381-1-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Update qapi/pragma.json]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
7270819384 qga/qapi-schema: Refill doc comments to conform to current conventions
For legibility, wrap text paragraphs so every line is at most 70
characters long.

To check the generated documentation does not change, I compared the
generated HTML before and after this commit with "wdiff -3".  Finds no
differences.  Comparing with diff is not useful, as the refilled
paragraphs are visible there.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-13-armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
5305a4eeb8 qapi: Correct documentation indentation and whitespace
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-12-armbru@redhat.com>
[Add a previous patch's stray hunk]
2024-03-26 06:36:08 +01:00
Markus Armbruster
209e64d9ed qapi: Refill doc comments to conform to current conventions
For legibility, wrap text paragraphs so every line is at most 70
characters long.

To check the generated documentation does not change, I compared the
generated HTML before and after this commit with "wdiff -3".  Finds no
differences.  Comparing with diff is not useful, as the refilled
paragraphs are visible there.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-11-armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
1e6b0505c4 qapi: Don't repeat member type in its documentation text
Documentation generated for the arguments of MEMORY_FAILURE looks like

    "recipient": "MemoryFailureRecipient"
       recipient is defined as "MemoryFailureRecipient".

    "action": "MemoryFailureAction"
       action that has been taken.  action is defined as
       "MemoryFailureAction".

    "flags": "MemoryFailureFlags"
       flags for MemoryFailureAction.  action is defined as
       "MemoryFailureFlags".

The "action is defined as ..." are redundant.  Drop.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-10-armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
73c67f3851 qapi: Start sentences with a capital letter, end them with a period
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-9-armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
7d08424cf7 qapi: Fix abbreviation punctuation in doc comments
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-8-armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
8698e1447f qapi: Fix typo in request-ebpf documentation
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-7-armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
aa03e16383 qapi: Fix argument markup in drive-mirror documentation
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-6-armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
7d50757c65 qapi: Tidy up indentation of add_client's example
Commit d23055b8db (qapi: Require descriptions and tagged sections to
be indented) indented add_client's example too much.  Revert that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-5-armbru@redhat.com>
[Move a stray hunk to the later patch it belongs to]
2024-03-26 06:36:08 +01:00
Markus Armbruster
b5e29402f1 qapi: Tidy up block-latency-histogram-set documentation some more
Commit a937b6aa73 (qapi: Reformat doc comments to conform to current
conventions) reflowed some text that should have been left alone.
Revert that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-4-armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
f972ed5925 qapi: Expand a few awkward abbreviations in documentation
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-3-armbru@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
c15fbc66e2 qapi: Drop stray Arguments: line from qmp_capabilities docs
Reported-by: John Snow <jsnow@redhat.com>
Fixes: 119ebac1fe (qapi-schema: use generated marshaller for 'qmp_capabilities')
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-2-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2024-03-26 06:36:08 +01:00
Markus Armbruster
e6c60bf02d qapi: Fix bogus documentation of query-migrationthreads
The doc comment documents an argument that doesn't exist.  Would
fail compilation if it was marked up correctly.  Delete.

The Returns: section fails to refer to the data type, leaving the user
to guess.  Fix that.

The command name violates QAPI naming rules: it should be
query-migration-threads.  Too late to fix.

Reported-by: John Snow <jsnow@redhat.com>
Fixes: 671326201d (migration: Introduce interface query-migrationthreads)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322135117.195489-4-armbru@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2024-03-26 06:36:08 +01:00